20 kW Three-Phase String Inverter

Technical reference SUN-20K-G05

A compact three-phase string inverter for smaller commercial rooftop arrays. Use its two trackers to organize the array layout, with grid-tied production rather than outage backup as the primary purpose.

AC output
20 kW
Max. PV input
26 kW
MPPT trackers
2
Protection
IP65

Configuration, availability, certification scope and commercial terms are confirmed at quotation.

The details
behind the configuration.

Values below follow the referenced model or explicitly stated model family. Review the final datasheet, rated conditions and supply scope before procurement.

Technical reference & verification

Deye — official Grid-tied string inverters technical reference

Reference model: SUN-20K-G05
Reviewed: 2026-10-15

View original technical reference ↗

Uses the technical table's 98.5% value rather than the page's broader marketing maximum. Dimensions exclude connectors and brackets.

20 kW Three-Phase String Inverter reference specifications
Rated AC output20 kW
Max. AC apparent power22 kVA
Nominal AC voltage220 / 380 V or 230 / 400 V
Grid frequency50 / 60 Hz
Max. PV input power26 kW
Max. PV input voltage1,100 V
MPPT voltage range200–1,000 V
MPPT / strings per tracker2 / 2+2
Max. conversion efficiency98.5%
Ingress protectionIP65
Dimensions (W × H × D)362 × 527 × 220 mm
Weight20 kg
CommunicationRS485 / RS232

Published reference values are not a substitute for the final selected-model datasheet and project design.

Equipment with
a project in mind.

  • Two independent MPPT trackers
  • Integrated anti-islanding protection
  • Intelligent air cooling

Connect the product
to the site.

Shops and officesSmall warehousesAgricultural rooftops

The complete system must account for site loads, electrical interfaces, environmental limits and local installation requirements.

Explore the planning guide

Let’s confirm the
right configuration.

Share your country, quantity, electrical requirements, installation environment and delivery plan. Ask for the final datasheet and supply scope for this reference.

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20 kW Three-Phase String Inverter verified family product view

SUN-18–25K-G05 family view; 20 kW configuration.

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